Magic and turbulence task
Measure of perceived sense of control in response to tasks in which control is manipulated; Greater negative numbers indicate improved understanding of control. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Pain catastrophizing scale for children- situation specific
Measures catastrophic symptom expectations; score ranges from 0-52, higher scores indicate greater levels of pain-related anxiety. Assessment done after performing Cold Pressor Test. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Pain tolerance (time)
Measures catastrophic symptom expectations. Measured by the total time the participant can keep their hand in cool water during the Cold Pressor Test. Shorter time indicates less pain tolerance. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Salivary cortisol response to Cold Pressor Test
Measures catastrophic symptom expectations. Measured before and after the cold pressor test. Increased cortisol response indicate increased perceived pain severity. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Pain Rating Scale
Measures perceived pain severity after the CPT; score ranges from 0-100. Higher scores indicate greater perceived pain severity. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Stroop task
Measure of cognitive inhibition and selective attention, higher scores means poorer cognitive inhibition and selective attention. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
PNES Frequency
Measured by Psychogenic Non-epileptic Seizures (PNES) diary, including frequency, premonitory symptoms, description of PNES symptoms and duration. Assessed 30 days before treatment to 12 months after the 12th treatment session (about 16 months total).
Frequency and severity also measured by Respironics Actiwatch Spectrum Pro. Assessed for 1 week between baseline visit and 1st therapy session and 2 weeks between 11th therapy session and 1 week after 12th therapy session (about 4 months total).
Pain Catastrophizing Scale for Children (PCS-C)- General
Measures catastrophic symptom expectations; score ranges from 0-52, higher scores indicate greater levels of pain-related anxiety. Assessment done before performing Cold Pressor Test. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Children's Somatic Symptoms Inventory (CSSI-24)
General somatic symptom complaints, higher scores indicate greater somatic complaints. Scores range from 0-140. Completed by participant and parent. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Anxiety Sensitivity Index (ASI)
Assesses catastrophic symptom expectations; higher scores indicate greater anxiety. Completed by participant and parent. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Shipley
Assesses verbal IQ; higher scores indicate greater verbal IQ. Completed by participant at the baseline visit.
Quality of Life in Epilepsy for Adolescents (QOLIE-AD-48)
Assesses health-related quality of life for children with epilepsy (used in PNES participants by instructing them to consider their PNES when asked about "seizures"); score ranges from 0-100, higher scores indicate better functioning and well-being. Completed by participant. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Sense of Agency Scale
Single question which asks "How much control do you believe you have over your PNES?". Completed by participant. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
LEVEL 2-Somatic Symptom report adapted from the Participant Health Questionnaire Physical Symptoms
Measures symptom severity in children; higher scores indicate greater symptom severity. Completed by participant and parent. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Functional Disability Inventory (FDI)
Completed by child and parent to measure physical functioning and disability in children with chronic pain; score ranges from 0-60, higher scores indicate greater perceived functional disability. Completed by participant and parent. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
The Impact on Family Scale
Assesses parental perceptions of the impact of a child's medical condition on the family; higher scores indicate greater financial burden on the family. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Childhood Trauma Questionnaire
History of physical, sexual and/or emotional abuse and physical and emotional neglect, higher scores indicate greater abuse/neglect. Completed by participant at baseline visit.
The Revised Children's Anxiety and Depression Scale (RCADS)
Measures anxiety and depression symptoms in children; higher scores indicate increased symptom severity. Completed by participant and parent. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
The Columbia Suicide Severity Rating Scale (C-SSRS)
Measure that addresses the full range of suicidal thoughts and behaviors that suggest a person is at heightened risk of committing suicide. Completed by trained research study coordinator. Assessed at baseline visit, 1 week after the 8th therapy session, 1 week, 6 months and 12 months after the final therapy sessions (about 16 months total).
Healthcare Related Stigma Questionnaire
Measures stigma in patients and their parents related to their interaction with health care providers; higher scores indicate greater stigma. Completed by participant and parent. Assessed at baseline visit.
COVID-19 Functional Neurological Disorders (FND) Questionnaire
Assesses the effect of COVID-19 diagnosis in FND patients. Completed by Children. Assessed at baseline visit
Flanker Inhibitory Control and Attention Subtest
Subtest of the National Institute of Health Toolbox Cognition Battery. Measures executive function and attention; higher scores indicate better performance. Completed by children. Assessed at 1st therapy session and 1 week after 12th therapy session (about 4 months total).
List Sorting Working Memory Subtest
Subtest of the National Institute of Health Toolbox Cognition Battery. Measures working memory; higher scores indicate better performance. Completed by children. Assessed at 1st therapy session and 1 week after 12th therapy session (about 4 months total).
Pattern Comparison Processing Speed Subtest
Subtest of the National Institute of Health Toolbox Cognition Battery. Measures processing speed; higher scores indicate better performance. Completed by children. Assessed at 1st therapy session and 1 week after 12th therapy session (about 4 months total).
Dimensional Change Card Sort Subtest
Subtest of the National Institute of Health Toolbox Cognition Battery. Measures executive function; higher scores indicate better performance. Completed by children. Assessed at 1st therapy session and 1 week after 12th therapy session (about 4 months total).
Picture Sequence Memory Subtest
Subtest of the National Institute of Health Toolbox Cognition Battery. Measures episodic memory; higher scores indicate better performance. Completed by children. Assessed at 1st therapy session and 1 week after 12th therapy session (about 4 months total).
Sleep
Objectively measured using Respironics Actiwatch Spectrum Pro and subjectively measured using sleep diaries. Worn/completed by children. Assessed for 1 week between baseline visit and 1st therapy session and 2 weeks between 11th therapy session and 1 week after 12th therapy session (about 4 months total).
PNES Episode Severity
Objectively measured using Respironics Actiwatch Spectrum Pro. Worn by children. Assessed for 1 week between baseline visit and 1st therapy session and 2 weeks between 11th therapy session and 1 week after 12th therapy session (about 4 months total).